[R] How to extract every nth element from a vector

[Uwe Ligges]

Barry Cooke wrote:
> 
> R-helpers:
> 
> Is there a simple way to extract every nth element from a very long vector?

vec[seq(n, length(vec), n)]


> [The vector I want to sample from is an object returned by lowess(). It is
> so long (11,628 pairs of elements) that it is causing non-R-related memory
> problems elsewhere. I don't see a better way other than sampling the output
> returned from lowess.]

Uwe Ligges
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